Locomotive structure



W. L. LENTZ ET AL LOCOMOTIVE STRUCTURE March 28, 1933.

Flled Dec. 3, 1931 e sheets-shed 1 March 28, 1933. w. L. LENTZ ET AL LOCOMOTIVE STRUCTURE Filed Dec@ 3, 1931 ys sheets-sheet 2 March 28, 1933. w. l.. LENTz Er Al.

LOCOMOTIVE STRUCTURE 6 Sheets-Sheet. 4

Filed Dec. 3, 1951 .M7/MMA Lef/ 75 jbl/enfers March 2s, 1933. W. L, LENTZ UAL 1,902,962

LOCOMOT IVE STRUCTURE Filedpeo. 3, 1951 e shets-sneei .5 63 "5l /-neo fors /4//7//4/27 L l, en?? far/V /f/ayer y Ef M7 @f/M March 28, 1933. w. L. LENTZ :TAAL 1,902,962

Locorm'rlv' STRUCTURE 4 Filed Dec. 3, 1931 6 Sheets-Seet 6 Patented Mar. 2s, l1933 UNITED STATES PATENT oIFl-IcE WILLIAM L. LEN TZ, OF TUCKAHO, NEW YORK, AND HAR-RY M. PFLAGER, OF ST. LOUIS,

MISSOURI, ASSIGNORS TO GENERAL STE EL CASTINGS CORPORATION, OE GRANITE CITY, ILLINOIS, A CORPORATIONOF DELAWARE LocoMoTIvE STRUCTRE Application filed December 3, 193,1. Serial No. 578,650.

This invention relates to railway rolling stock and consists particularly in a novel construction of locomotive underframes including various internal passages arranged to serve as steam and water conduits. f

On previous locomotives the steam pipes extending from the cylinder saddle to the booster engine and exhaust steam injector, and the water pipe leading from the tender to the water pump have been mounted on the outside of the locomotive underframe or superstructure. The space required for mounting these pipes on the outside of the Vunderframe or locomotive structure, especially the space for the large exhaust steam pipe extending from the main exhaust steam passages in the cylinder saddle to the exhaust steam injector, is very limited and considerable dificulty has been experienced in mounting these pipes so as not to interfere with other parts of the locomotive, and so as not to greatly aii'ect the general appearance of the locomotive.

The main object of the present invention is to eliminate the above difficulties and improve the genera-l appearance of the locomotive by constructing an underframe having various internal passages through which steam'ma be conducted from the cylinder saddle to the injector and booster motor and water from the rear of the frame to the feed water heater mounted at the front.

Another object is to further improve the` appearance of the locomotive and provide additional space for mounting other equipment by constructing the main airreservoir integral with the locomotive bed and between the side frames instead of securing the reservoir on the outside oi the bed or locomotive superstructure, as is frequently done at present.

These general objects and other more detailed objects are attained in the structures illustrated in the accompanying drawings fin which- Figure 1 is a top view ofthe front half of an integral locomotive underframe structure embodying one form of the invention.

Figure 2 is a side view of the same.

Figure 3 is a top view of the rear half of the underframe.

tudinally between the side members. j estals 3 are formed-integral with the side Figure 4 is a. side view of the same showing a portionof the irebox, boiler, trailing truck, and other equipment.

Figure 5 is a vertical transverse section takenon the line 5 5 of Figure 4.

Figures 6, 7,8, and 9 are detail vertical i transverse sections taken on the corresponding section lines of Figure 4.

Figures 10, 11, 12, 13, and 14 are detail vertical transverse sections taken on the corresponding section lines of Figure 2.

Figure 15 a top view of a locomotive bed embodying another form of the invention.

Figure 16 is a side view of the same.

Figure 17 is a front view of the same.

Figures 18 to 25 are vertical half sections taken on lthe corresponding section lines of Figure 16.

Figure 26 is a vertical transverse section taken on the line 26-26 of Figure 15.V

Figure 27 is a top view of a portion of a locomotive bed embodying another modified form of the invention. ,Y

Figure 28 is a side view of the same.. j

Figures 29 and 30 are vertical transverse half sections taken on the corresponding section lines of Figure 27.

Figures 31 and 32 are vertical transverse half sections taken on the corresponding section lines of Figure 28. Y

In Figures 1 to 14, the various conduits are formed integrally with the one-piece underframe shown which includes box section side members 2 and pedestals 3 braced by suitable transverse ribs 2a and an elongated box section main body structure 6 extending longime1nbers,and'the side elements of cradle 4, which support irebox 48, ash pan 43, and hopper 44, comprise extensions of theside members and thevmain body member. A bracket 5 Vprojects from the right hand element of the cradle 4 (Figure 5) for mounting an injector 23. `The rear portion of the underframe includes buiiing Vplate 7, rear deck structure 8, and laterally projecting arms 9 for engaging rocker bearings 10 carried by the trailing truck 11. The forward portionof the casting includes front deck' 100 Ped 1 and the usual cylinder saddle comprising main steam cylinders 12, valve chambers 13, and boiler saddle 14.

Valve gear brackets 15, guide yoke brackets 16, brake hanger `brackets. 17, equalizer fulcrums 18, spring hanger lugs 18a, brake lever fulcrums 19, and expansion plate brackets 2O are all of known design and in themselves do not constitute the present inven tion. Mounted von each deck 1 are a feed water pump 21 and an air Compressor 22. An exhaust steam injector 23 is secured to bracket 5 and a booster' motor 24 is mounted on the trailing truck 11Y beneath the rear end of .the underframe and cab 25. Y.

Exhaust steam is supplied to the injector 23 from main exhaust passage 26 in the cylinder saddle 14 through a pipe 27 and oil separator 28. Pipe 27 connects with a conduit 29 which is supported near its forward end by an upright transverse rib 3() and merges with passage 31 extending Nunderframe casting beneath the elevated top web 6a of the box-shaped body portion 6 of the casting. Passage 31 extends through the inclined portion of the top web near the rear end of the main frame and connects with pipe 32 leading to the injector. Feed'water, entering the injector through suction pipe 33, is delivered to the boiler through pipe 34 which contains a check valve. l

Live steam is fed to the booster motor24 throughfa pipe 35 and throttle valve 36 which are connected with conduit 37 and passage 38, corresponding` with the conduit 29 and passage 31, respectively, on the other side of the underframe. A pipe 39, secured to fire box 48'by brackets 40, conducts steam from i motor. The booster passage v38 to the booster Y exhaust passes through pipe 41 to a passage 42 which extends through the hollow right hand cradle element (Figure 5) and then through the elongated body member 6 paralleling` injector passage 31. Passage 42 merges in the cylinder saddle with main ei;- haust passage 26 from the, valve chests 13. Upright ribs 49 traverse the box-shaped backbone member of the underframe at intervals and serve to brace the underframe and support pipes 31 and 38. r '.,Another feed water supply from the tender is directed through pipe 45 connecting with lpassage 46 formed in the underframe and corresponding with booster exhaust passage 42. A pipe 47 connects passage 46 with the feed water pump 21.

The different passages will necessarily vary somewhat in size and shape according to thecontour of the underframe at difierent points along its length, but the casting is preferably made substantially uniform on each side of the Vlorigitudinal centerA line thereof in order to maintain proper balance and appearance and conforinwith'st'rength side of the forward.

the length of the requirements. cupy hollow portions of the underframe, and the passages 31 and 38 are located in the i nterior of the box section body member 6, which space is ordinarily'not utilized. Thus, diiiculties experienced in mounting the various conduits on the outside of the frame are eliminated and additional space is provided which facilitates the. mounting of other equipment. l n

ln Figures 15 to 26 is illustrated a loco-V motive underframe including box-section backbone member 53 traversed at intervals by internal upright ribs 54 having substantial cored openings 86. Member 53 is.op en at both ends and the side wallsthereof diverge at each end as at 87 and 89 and merge with underframe side members 55. t

Fluid pipes and 51 extendlongitudinally through the inside of member 53, passing through cored openings 86 in ribs 54, and are supported from the top web of member 53 by hangers 57, clearly shown in Figures 22 and 25. The complete pipe supporting brackets are inserted through convenient openings in the structure and applied to the'pipes at suitable points by means of curved straps'58 and 59 and bolts 60. With the boiler and fireboX, a portion of the latter being shown at 61, in position on the underframe, the hori- Zonta-l portions ofpipes 50 and v51 can be. applied to or removed from the underframe through openings 56 in the front and rear walls of the boilerrsaddle 63. The top central portion of the deck plate 64, support-V ed by diagonal ribs 84 and 85, Vis depressed below the level of pipes 50 andl 51so as not to interfere with insertion orremoval of the pipes. j

lPipes 50 and 51 each may comprise two or more sections within member 53'which are secured together by means of bolting lflanges or, if desired, they may each consist of a single pipe within member 53. Pipe 51 connects v with the adjacent steam chest through booster throttle valve 66, and, at the rear end of member 53, connectswith a pipe section 67 leading around the fire-box to the booster motor.' This vpipe may also be used to conduct water from the tender to the feedwater pump 62, as indicated in broken lines in Figure 15, if desired. Pipe 50 connects at the front end with oilseparator 68 and a main exhaust passage 70 in the cylinder saddle, and at the rea-r end with pipe 69. EX- haust steam is diverted rearwardly through pipes 50 and 69 to the exhaust steam injector (not shown) which is preferably mounted on ya bracket projecting from the side of the cradle 71. Y i

It will be seen that in this form the walls of member 53 are insulated from the portions of the pipes 50 and 51, located within member 53, by intervening air space and thatonly The passages 42 and 46 oca negligible amount of heat will be transmitted through hangers 57. Pipes 50 and 51 may, if desired, serve for other purposes, pipe 51 being readily utilizable as a passage for feed water from the tenderto theV feedwater pump, and pipe 50being conveniently located for conducting exhaust steam from the booster to the cylinder saddle. No passages are provided corresponding with integral passages 42 and 46 in the first form.

In Figures 27 to 32, conduits 72 and 84 pass through perforations 82 in a sloping web 7 3 which extends across the rear end of hollow backbone member 74, and through cored openings 75 in ribs 76 inthe interior of the member. The portions ofthe conduits 72 and 84 which are located within member 74 are spaced from the walls of the member, as in the form previously described, and are supported from the curved top web of the member by brackets 78,. A main air reservoir 77 is formed integral with a depressed portion of the top web of the backbone member 74. Cleaning openings 79 inthe reservoir are closed after casting by steel plates welded in place. The reservoir is further p braced by diagonal ribs 90.

Reservoir 77 intersects the `rear boiler expansion plate bracket `8O and the corresponding boiler expansion plate P must be divided, in order to clear the reservoir, and secured to portions of the bracket on each side of the upwardly projecting reservoir structure. Expansion plate bracket 8l and other similar brackets, beyond the front end of the reservoir, may extend entirely across the bed in the usual manner. Brake hanger brackets 83 are provided at the outer ends of expansion plate brackets 80 and 8l.

Obviously the structure illustrated mlght be otherwise varied as to details. Other pipes could be located within the hollow backbone member of the underframe in Figures l5 to 25 and other methods of mounting the pipes might be adopted in Figures 15 to32. The particular general form of the vbed and its parts is not essential. Also the various passages and conduits could be used for other purposes than those described. These and other modifications might be made without departing from the spirit of the inventionand the exclusive use of all such variations as come within the scope of the appended claims is contemplated.

We claim:

l. A cradle for a locomotive underframe including spaced side elements, one ofsaid elements being hollow and serving as a fluid conduit.V Y

2. A cradle for a locomotive underframe including a side member having a wall, said wall forming at least a portion of the wall of a Huid conduit.

3. In a locomotive underframe, a main frameportion, and a cradle having a hollow through said underframe.

c 5. In a locomotive. underframe, lav main frame with pedestals, a cradle comprising. an

extension on said main frame and having a hollow side member, and a. iiuid conduit formed in part by said hollow side member and extending through said underframe alongside of said pedestals.`

6. In a locomotive underframe integral structure, a forward steam cylinder portion, a rear cradle portion, a'main body member, and av iuid conduit extending between said portions, a substantial part of said conduit eing located within said body member and extendingv substantially from end to end thereof. e 7. .In a locomotive, an underframe including a cradle having a side member, driving wheels, and a fluid conduit'extending longi-V tudinally through the portion of said underframe abreast, said driving wheelsl and through said side member. A f j Y 8. In a railway vehicle underframe integral structure,vspaced side members, an elongated hollow member bracing said side members, and a pair of fluid conduits extending longitudinally through the interior of said bracing memberA and the top webthereof. l p Y f 9. In a railway vehicle underframe integral structure, spaced sidemembers, an elongated hollow brace therefor, and a plurality of fluid conduits, one of said conduits extending through ksaid brace and being spaced' therefrom' except lat its point of passage through the wall thereof, and another of said conduits being formedby a partition in said brace. A Y l y 10. In a locomotive underframe integral structure, spaced side frames, a transverse brace, a cradle including a side element, and a fluid conduit extending longitudinally of said underframe through said side element and said brace. 11. In a locomotive underframe integral structure, spaced side frames, a; cradlein-` cluding a side element, an elongated hollow body member extending longitudinally between said side frames, and a fluid conduit projecting out through Y extending longitudinally `of saidunderframe said member, and a fluid conduit extending longitudinally withinfsaid member and having a portion passing through the top thereof and supportedv by said rib. c

y13. In. combination, aside frame member for a railway vehicle underframe, and a steampassage adjacent said member, said member 'being hollowthroughout at least a portion ofits length and comprising aconduit for conducting steam to .or awayfrom said passage, v Y 14. In combination, a locomotive underframe member, and a feed-Water pump positioned neary said member, said member being hollow throughout a substantial portion of its length and comprising a conduit for'conducting feedwater to orV away from said ump. 15. In combination in a locomotive, an underframe including an elongated main body member, a steam passage near one end of said underframe, a booster motor steam pipe located adjacentthe other end of said underframe, and a steam conduit connecting Vsaid passage and said pipe, a substantial portion of said conduit being `located within and spaced .from the walls of said body member.

16. In combination in a locomotive, an underframe including an elongated main body member, passages lfor llivesteam and exhaust steam vnear one end of said underframe, booster motor steam supply and exhaust pipes near the other end of said underframe, and conduits connecting said passages with said pipes, substantial portions of said conduits being'positioned within said-body member and spaced throughout their lengths therefrom.'

" v17. In combination, a'locomotive under- Y said member.`

y 18; In combination, a locomotive underframe Vincluding spaced side members and a member bracing said side members, a booster motor located adjacent one lend of said underframe, a steam passage located near the opposite end of said underframe, and a conduit connecting said booster motor and said passage andleading through aportion of one of said side members landthrough said bracing member, portions .of said -conduit being integral with said bracing and side members.

19. In combination in a locomotive, an underframe including an elongated main body member, a water supply pipe near one end of ,said underframe,a feedwater pump adjacent the other end of said underframe, and

a .conduit vconnecting said pipe and said pump, asubstantial portion Vof said conduit being within said body member and spaced from the walls thereof. l

. 20. In Vcombination in a locomotive, an underframe including an elongated main body member, an exhaust steam passage adjacent one end of saidfunderframe, an injector exhaust steam pipe spaced longitudinally of said underframe from'said passage, and a conduit connecting said passage and said supply pipe, a substantial ,portion of said conduit being within said body member andspaced from the walls thereof. f f

v21. In a steam locomotive, an underframe having spaced side-'members including pedestals and a bracing member extending longitudinally between said side members,and a separate iuid conduit extending along' said side members and pedestals and through said bracing member, said conduit being spaced.

from the walls of. said member so as to provide for expansion of said conduit without causing excessive stresses in said underframe.

22. In a locomotive underframe, a longitudinal body member includingpedestals and a fluid conduit extending substantially throughout the length of said body member and alongsideofsaid pedestals and secured toa wall of saidmember by brackets, said brackets maintaining said conduit spaced from 4the walls of said body member.

23; lIn a locomotive underframe, a longitudinalbody member including pedestals, a bracing -rib extending transversely of the interior of said body member and having a peI- v forationtherein, and a Huid conduit extending through saidl body member and said rib and alongside of said pedestals and spaced from said rib and the walls of said member.

24. `In a locomotive underframe, a longitudinal body member including pedestals, and a fluid conduit extending through said body member and alongside of said pedestals and secured to said member by brackets, each ofsaid brackets comprising an element proj ecting from a wall of said body member and a pair of straps secured to said element and shaped to grip said conduit between them.- Q5. In a locomotive underframe, 'a` longitudinal body member includingpedestals and a fluid conduit extendingthrough said body member and alongside of said pedestals and secured to said body member by brackets, each of said brackets comprising an element ,projecting from a wall of said body member and a pair of strapsV secured to said element and shaped to ygrip saidv conduit` between them. and said brackets maintaining said conduit spaced from the walls of saidy body member. 2,6. In a locomotive underframe, a hollowlongitudinal body member and an air reservoir integral with and having its lower portion formed by the top vwall of said body member. I y

27. In a locomotive underframe, spaced side members, an elongated bracing member extending therebetween, and an air reservoir integral with and located wholly above the level of said bracing member.

28. In a locomotive underframe, a main longitudinal hollow7 body member including a top web having a depressed portion, and an air reservoir projecting upwardly from said top web, said depressed portion forming a part of said reservoir.

29. In a locomotive underframe, a main longitudinal hollow body member, an air reservoir projecting above said body member, and a boiler expansion plate bracket on each side of said reservoir.

30. In a locomotive underframe, an elongated body member and an air reservoir located above said body member, and a uid conduit extending through said body member and spaced from the walls thereof and from said reservoir.

3l. In a locomotive, an underframe having side members, a longitudinal bracing member between said side members, and an air reservoir located above said bracing member and integral therewith, and a fluid conduit extending through said bracing member and spaced from the walls thereof and from said reservoir.

32. In a locomotive, an integral underframe structure including an elongated hollow body member and an air reservoir,.the top wall of said body member including upwardly inclined side portions and a depressed intermediate portion, and said depressed portion forming a portion of the wall of said reservoir, brackets depending from the upwardly inclined portions of said top wall, and a fluid conduit mounted in said brackets and spaced thereby from the walls of said body member and said reservoir.

38. In a locomotive, an underframe including a boiler support having a transverse upright member and a longitudinal framing member extending rearwardly from said support, said upright member having an opening therein, and a fluid conduit extending through said framing member and spaced from walls thereof, said opening being adapted to permit the application or removal of said conduit through the front of said sup-V ort. p 34. In a locomotive, an underframe including a boiler support having a transverse upright member, a longitudinal framing member extending rearwardly of said support, and a deck plate extending forwardly of said support, said upright member having an opening therein, and a fluid conduit extending through said framing member and spaced from the walls thereof, the top of the center portion of said deck plate being disposed below the level of the bottom of said conduit so support, and a fluid conduit extending through said framing member, said supportv and deck being shaped to permit the application of said conduit to said underframe from the front end thereof.

36. In a locomotive, an underframe including a boiler support and a longitudinal framing member extending rearwardly of said support, and a fluid conduit extending through said framing member, said support being shaped to permit the application of said conduit to said underframe from the front end thereof. y

37. A railwaylocomotive integral underframe structure including an elongated hollow backbone member and a fluid conduit extending through said member, said conduit being spaced from said member except at spaced points of support.

In testimony whereof we hereunto aiix our signatures this 21st day of November, l

1981 and 17th day of November, 1931, re- 

